12X11X1111111111
122X12XX11111111
122X1X11X2X11111
12X112XXX2X11111
12211211X1112X11
12XX1XXXX1112X11
12XX121112X12X11
12211XXX12X12X11
12X11XX112112111
122X121X12112111
122X1XX1X1X12111
12X1121XX1X12111
122112X1X2111X11
12XX1X1XX2111X11
